<!doctype html>
<meta charset=utf-8>
<title>Client Hints: Delegation of hints to cross-origin frames and resources for none</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<script>
// Here's the set-up for this test:
// Step 1. (Site 1 Window) verify ch-device-memory availability.
// Step 2. (Site 1 Window) set up listener and embed Site 2 Frame.
// Step 3. (Site 2 Frame) verify ch-device-memory availability.
// Step 4. (Site 2 Frame) embeds Site 1 Frame.
// Step 5. (Site 3 Frame) verify ch-device-memory availability.
// Step 6. (Site 1 Window) exit.

promise_test(async (t) => {
  // Step 1
  let r = await fetch("/client-hints/inner-delegation/resources/was-sec-ch-device-memory-received.py");
  assert_equals(r.status, 400, "Site 1 fetching Site 1 did recieve sec-ch-device-memory");
  r = await fetch("https://{{hosts[alt][]}}:{{ports[https][0]}}/client-hints/inner-delegation/resources/was-sec-ch-device-memory-received.py");
  assert_equals(r.status, 400, "Site 1 fetching Site 2 did recieve sec-ch-device-memory");
  r = await fetch("https://{{domains[www2]}}:{{ports[https][0]}}/client-hints/inner-delegation/resources/was-sec-ch-device-memory-received.py");
  assert_equals(r.status, 400, "Site 1 fetching Site 3 did recieve sec-ch-device-memory");
  // Step 2
  const site2Frame = document.createElement("iframe");
  site2Frame.src = "https://{{hosts[alt][]}}:{{ports[https][0]}}/client-hints/inner-delegation/resources/accept_ch_delegation_to_none_iframe.sub.https.html";
  document.body.appendChild(site2Frame);
  // Step 6
  return new Promise(resolve => {
    window.addEventListener("message", resolve);
  }).then(e => {
    assert_equals(e.data, "ch-device-memory is available as expected for none");
  });
}, "postMessage: First-Party to Third-Party, Cross-Partition, Same-Origin");
</script>
</body>
